Hi Joshua - Did you continue working with this idea? I'd also like to experiment using Julia in the Cray environment (using aprun etc).
Best, Patrick On Friday, August 15, 2014 at 6:25:35 AM UTC+2, Joshua Job wrote: > > Hello all, > > I recently acquired an account under a project at ORNL's Titan > supercomputer, and had hoped to deploy some Julia codes I had written and > used on my University's HPC cluster but I'm having some trouble. Titan only > allows one to start processes on other computers via the "aprun" command, > which is basically the same as mpirun. You can have processes communicate, > but only via MPI (no sshing into compute nodes allowed). > > I know there is an MPI.jl package available and a ClusterManagers.jl > package available. Does anyone have any idea how much work would be > involved in trying to create a cluster manager that passes messages between > workers via MPI rather than ssh? > > Alternatively, I primarily use pmap for parallel computation, so I may be > able to get by with a wrapper script which will first compute which core > will do what task in the pmap-like operation and then create a > configuration file that all the julia workers can see what job they should > do given their MPI rank from MPI.jl. That might work, but it isn't as clean > as the real pmap. > > Thanks in advance for any guidance y'all might be able to give! > -Josh. >
